Android，Java仅从字符串数组获取最后一个单词

Question

I have build a java app which use voice recognition, I created a string array like this:

String[] greetings = {"hello", "hi", "yow"};

Now the problem is is that the app is only detecting the last word of the array "yow", not "hello" or "hi"

for (String strings: greetings) 

                 { if (mostLikelyThingHeard.contains(strings)) {
                            tts.speak("Hey nice to see you!",
                                    TextToSpeech.QUEUE_FLUSH, null);

So I really don't know what I am doing wrong, maybe mostLikelyThingHeard needs a 'for' loop also?

Full code:

package nl.giovanniterlingen.pws;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Main extends Activity implements OnInitListener {
    private static final String TAG = "PWS";

    private TextView result;

    private TextToSpeech tts;

    private Button speak;

    private int SPEECH_REQUEST_CODE = 1234;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        speak = (Button) findViewById(R.id.bt_speak);
        speak.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sendRecognizeIntent();
            }
        });

        speak.setEnabled(false);
        result = (TextView) findViewById(R.id.tv_result);

        tts = new TextToSpeech(this, this);
    }

    @Override
    public void onInit(int status) {
        if (status == TextToSpeech.SUCCESS) {
            speak.setEnabled(true);
        } else {
            // failed to init
            finish();
        }

    }

    private void sendRecognizeIntent() {
        Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Aan het luisteren...");
        intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 100);
        startActivityForResult(intent, SPEECH_REQUEST_CODE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == SPEECH_REQUEST_CODE) {
            if (resultCode == RESULT_OK) {
                ArrayList<String> matches = data
                        .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

                if (matches.size() == 0) {
                    tts.speak("Ik heb niks gehoord, probeer het nog eens",
                            TextToSpeech.QUEUE_FLUSH, null);
                } else {
                    String mostLikelyThingHeard = matches.get(0);
                    result.setText("Dit heeft u gezegd: "
                            + mostLikelyThingHeard + ".");
                    String doei = "doei";
                    String[] greetings = { "hello", "hi", "yow" };

                    for (String strings : greetings) {

                        if (mostLikelyThingHeard.contains(strings)) {
                            tts.speak("Hey nice to see you!",
                                    TextToSpeech.QUEUE_FLUSH, null);

                        } else if (mostLikelyThingHeard.equals(doei)) {
                            tts.speak("Okay tot de volgende keer!",
                                    TextToSpeech.QUEUE_FLUSH, null);
                        } else {
                            tts.speak("Ik begrijp niet wat je bedoeld met "
                                    + mostLikelyThingHeard
                                    + " probeer het anders te verwoorden.",
                                    TextToSpeech.QUEUE_FLUSH, null);
                        }
                    }
                }
            } else {
                Log.d(TAG, "result NOT ok");
            }
        }

        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    protected void onDestroy() {
        if (tts != null) {
            tts.shutdown();
        }
        super.onDestroy();
    }
}

Answer 1

You can take all words in a single string (not array string).I know that's would not be the best solution so I am providing you a simple example in which whatever you write the engine will speak.

MainActivity.java
package com.authorwjf.talk2me;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

    protected static final int REQUEST_OK = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.button1).setOnClickListener(this);
    }


}
//The on click handler is responsible for firing off the voice intent. 

@Override
public void onClick(View v) {
Intent i = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
         i.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US");
             try {
             startActivityForResult(i, REQUEST_OK);
         } catch (Exception e) {
                Toast.makeText(this, "Error initializing speech to text engine.", Toast.LENGTH_LONG).show();
         }
}

//When the intent calls back, we display the transcribed text.

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode==REQUEST_OK  && resultCode==RESULT_OK) {
                ArrayList<String> thingsYouSaid = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                ((TextView)findViewById(R.id.text1)).setText(thingsYouSaid.get(0));
        }
    }

//activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="132dp"
        android:text="..." ></TextView>

    <ImageButton
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/text1"
        android:layout_centerHorizontal="true"
        android:layout_margin="10dp"
        android:layout_marginTop="37dp"
        android:src="@android:drawable/ic_btn_speak_now" ></ImageButton>

</RelativeLayout>

Answer 2

the only problem I am seeing is that you're checking for "doei" inside the for... Besides that, it should work ok. also, consider ensuring the thing heard is in the case you're expecting it to be. Also, you should keep track of the fact that you found a word or not in the for.

String doei = "doei";
String[] greetings = { "hallo", "hi", "yow" };
mostLikelyThingHeard = mostLikelyThingHeard.toLowerCase();
boolean found = false;

for (String strings : greetings) {
    if (mostLikelyThingHeard.contains(strings)) {
        tts.speak("Hey nice to see you!",
            TextToSpeech.QUEUE_FLUSH, null);
        found = true;
        break;
    }
} 
if (!found) { 
    if (mostLikelyThingHeard.equals(doei)) {
        tts.speak("Okay tot de volgende keer!", TextToSpeech.QUEUE_FLUSH, null);
    } else {
        tts.speak("Ik begrijp niet wat je bedoeld met "
          + mostLikelyThingHeard
          + " probeer het anders te verwoorden.",
          TextToSpeech.QUEUE_FLUSH, null);
    }
}